Najenda and Esdeath, in the original work/canon of the Akame ga Kill World, were absolute, irreconcilable mortal enemies, a relationship of sworn hostility where it was either you die or I perish, regardless of national or personal grudges.
After all, Najenda had an arm and an eye cut off by Esdeath in the original work/canon.
Now, placing the two, still in their infancy, under one roof, things seem to have become much more interesting.
These two Little Ones were probably enemies in a past life; they seemed to inherently dislike each other, even at their first meeting, they were mutually hostile, and putting them together would always spark conflict.
For instance, right now, Rin was in the outer office handling the latest military intelligence and official duties, so she left the two children in the inner lounge. They should not be bored playing together; of course, this was just Rin's wishful thinking. The actual situation was... "Clang, bang, crash..."
Fortunately, the walls of the lounge in this fortress headquarters had good soundproofing; otherwise, Rin's military strategy meeting would not be able to proceed just from the sound of these two Little Ones fighting.
As for why the two children started fighting, the reason was simple: Little Najenda wanted Little Esdeath to call her "Elder Sister," and Little Esdeath firmly refused.
Little Najenda felt that this wild girl, who had inexplicably appeared from nowhere and taken away her status as Rin's only daughter, was too arrogant. Her status as Elder Sister was personally appointed by her mother, and she dared not to call her that! To defend her dignity as an Elder Sister, Little Najenda felt it was necessary to teach her a lesson.
As for Little Esdeath, there was even less to say. As a daughter of the Balutes Tribe, how could she casually call a child from an inland tribe "Elder Sister"? This Little One completely lacked the warmth she felt from her mother. She was definitely not her mother's biological daughter. Her own mother, after all, was her mother's old friend, and her mother and she were of the same tribe. This Little One, whom her mother picked up from who knows where, still wanted her to call her "Elder Sister"? No way!
The two Little Ones looked at each other with indignation. After a brief internal struggle, and no one knows who struck first, the intense clash of their gazes turned into a physical confrontation!
The two Little Ones, one three and one five, knew nothing of martial arts or techniques. It was all scratching, tearing, pinching, biting, and clawing; squeezing faces, poking noses, wrestling, poking foreheads. All sorts of "unorthodox" "martial arts divine skills" were unleashed, freely aimed at each other, like two mad little wildcats entangled together.
Let's hurt each other!
In the original work/canon plot, Najenda, as a strategic general, would not be a match for Esdeath, who possessed Demon God's Descent - Essence of the Devil, even if there were ten more of her. But now it was two children fighting... a three-year-old brat could never beat a five-year-old.
After all, she had eaten meat for two more years than Little Esdeath. Perhaps an average five-year-old might not be able to beat a Balutes girl growing up in the Great Snow Mountains, but Little Najenda was found and raised—no, fostered—by Rin since she was less than two years old. Moreover, to lay a good foundation for Najenda, who was destined to join the military in the future, Rin also gave Little Najenda some basic training.
In the end, Esdeath lost! Najenda gloriously won the first brat war.
"Call me Elder Sister."
"No."
"Bang!"
"Call me Elder Sister."
"No."
"Bang!"
"Call me Elder Sister!"
"No!"
"Bang! Bang! Bang!"
Little Najenda, with a stern little face, sat on Little Esdeath, giving her "elder sister" education. Each refusal was met with a flick to Little Esdeath's forehead, a very forceful one that made a sound. Little Esdeath was indeed a good daughter of the Balutes Tribe; her smooth forehead was red from the "cruel" Little Devil Najenda's flicks, yet she stubbornly held back her tears, her eyes glistening but refusing to yield!
However, very quickly, the "abusive" Najenda, who was tormenting the weak, received her comeuppance. Her face, subtly hinting at a triumphant smile, was pinched by two snow-white fingers—
"Smack."
"Ahhh~~~ Mama, I was wrong!"
"You two can turn the world upside down in the time it takes for me to have a meeting. Najenda, as the Elder Sister, are you really going to bully your younger sister like this?"
Rin, who had returned from her meeting, sternly pinched Little Najenda's little face with her right hand, lifting her off Little Esdeath. Upon seeing her savior arrive, Little Esdeath, without a word, scrambled up like a little white cat and burrowed under Rin's cloak, wrapping herself in the black fabric with only her small head peeking out, and smiled gleefully at Najenda, whose face was being pinched.
"Waaahhh~~~ She refused to call me Elder Sister first."
"So you resorted to violence?"
"Didn't you once say that for us of the Reverse Black Cross, if we can use our hands, don't use our mouths, and everything is decided by strength?"
Rin was amused by this Little One. She released the pinched cheek and flicked Najenda's forehead—
"Bang!"
"Ow! It hurts!"
Little Najenda, with tearful eyes, covered her forehead and looked at Rin, her voice choked with grievance:
"Waaahhh... Mama, do you not like me anymore since you found my sister? sniff... (sobbing)"
"Hahaha, children always overthink things, worrying for nothing over such matters."
Rin laughed, picked up Najenda, and reached out to rub Najenda's forehead, which had turned a little red from her flick.
"How is it? Does it still hurt?"
"Woo~ My forehead doesn't hurt anymore, but the spot where Mama pinched me still hurts. Mama needs to kiss it to make it better!"
Lin couldn't stop laughing at the Little One's antics. Her cherry lips pressed a hard kiss on Najenda's cheek where she had been pinched. Little Najenda happily closed one eye, blushing and smiling. Little Esdeath, wrapped in her cloak, immediately felt annoyed. She grumbled in a low, disgruntled voice:
"Cunning inlanders, hmph~"
At this moment, Suzaku also finished organizing the meeting documents and pushed open the door to the inner lounge. Seeing the room that she had just tidied up not long ago now completely turned upside down, she was instantly "shocked." The entire room was a complete mess.
"What happened?!"
"What happened? It's all thanks to these two little wildcats. They can fight over the smallest things."
As Lin spoke, Little Esdeath, clutching the cloak on Lin's back, climbed up Lin's shoulder like a kitten climbing a tree. She wrapped her arms around Lin's fair neck, once again confronting Najenda, who was in Lin's embrace. The invisible sparks made Lin, caught in the middle, feel dazzled.
Looking at the two Little Ones vying for attention, Suzaku could only sigh helplessly. How could she get angry with two ignorant children?
Suzaku stayed in the inner room to clean up, while Lin took the two Little Ones to the deserted office outside. Lin sat in her general's chair, holding both little girls in front of her, one on each of her laps, and said seriously:
"Najenda, Esdeath, in two days, we will have the biggest decisive battle against the Northern Nomads. At that time, I will arrange for you to witness a real war from the safest place. This might affect the rest of your lives, but you must also pay attention to your own safety. You are absolutely not allowed to act up while I am fighting, understand?!"
"..."
"..."
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